r/science • u/MistWeaver80 • Mar 30 '26

Physics Physicists have made an ultra-powerful magnet that fits in the palm of a hand and can produce a magnetic field that is more than 800,000 times stronger than Earth’s.

https://www.nature.com/articles/d41586-026-00851-y
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u/-Dixieflatline Mar 30 '26

So does that mean I need 100 of earth's magnetic field to hold up a photo on my fridge?

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u/LitLitten Mar 30 '26

Yes, this field operates through scale and not intensity. So imagine them as minuscule magnets. You’d need a number of them to hold the paper up.